Preliminary
Precision Surface Mount OCXO
OHSM4 Series
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
US Headquarters:
630-851-4722
European Headquarters:
+353-61-472221
Description:
The Connor-Winfield OHSM4
is a surface mount precision
OCXO in a 20.3mm x 12.7mm
package size. The OHSM4 is
designed for compliance to
ITU-T G.8262 Options 1 and
2, and ITU-T G.8263.
Features:
• OCXO - Fixed Frequency
• OCVCXO - Voltage Controlled
• Frequencies Range: 6.4 MHz to 40 MHz
Higher Frequencies available upon request
• 3.3V or 5.0V Operation
• LVCMOS, HCMOS or Sinewave Output
• Frequency Stabilities Available:
*05: ±5ppb; 10: ±10ppb;
20: ±20ppb; 50: ±50ppb
• Temperature Ranges Available:
0 to 70°C, -20 to 70°C, -20 to 75°C,
-40 to 70°C, or -40 to 85°C
• Low Phase Noise
• Surface Mount Package
• RoHS Compliant / Lead Free
Pin Connections
Pin Function
1: OCXO - N/C
VCOCXO - Voltage Control
7 Ground (Case)
8: Output
14: Vcc
Surface Mount Package
CW
OHSM4610LF
10.0 MHz
1546
Dimensional Tolerance:
±.005 (.127mm)
±.02 (.508mm)
Suggested Pad Layout
CW
OHSM4610LF
10.0 MHz
1546
Dimensional Tolerance:
±.005 (.127mm)
±.02 (.508mm)
Ordering Information
OHSM4
Oscillator
Type
Precision
Frequency Std
OCXO or
OCVCXO
Package
Type
OHSM4 =
Surface Mount
Package
6
Temperature
Range
5 = 0 to 70°C
6 = -40 to 85°C
7 = -20 to 70°C
8 = -40 to 70°C
9 = -20 to 75°C
10
Frequency
Stability
*05 = ±5 ppb
10 = ±10 ppb
20 = ±20 ppb
50 = ±50 ppb
L
Supply Voltage / Output
L = 3.3Vdc / LVCMOS
H = 5.0Vdc / HCMOS
S = 5.0Vdc / Sinewave
R = 3.3Vdc / Sinewave
F
Output
F = OCXO
(Fixed Freq.)
(Voltage Controlled)
-010.0M
Output
Frequency
M = MHz
xxx.xxM
V = OCVCXO
Bulletin
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Revision
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Date
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Cx225
Cx272
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13 Nov 2015
Example: OHSM4610LF-010.0M
* ±5ppb stability
only available
for 0 - 70°C or
-20 to 70°C
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage (Vcc)
3.3V LVCMOS
5.0V HCMOS / Sinewave
Control Voltage (Vc)
3.3V LVCMOS
5.0V HCMOS / Sinewave
Minimum
-55
-0.5
-0.5
-0.5
-0.5
Nominal
-
-
-
-
-
Maximum
125
4.5
7.0
4.5
7.0
Units
°C
Vdc
Vdc
Vdc
Vdc
Notes
Operating Specifications
Parameter
Frequency Calibration
Frequency Stability
Frequency vs Change in Supply Voltage
Aging Daily
Aging 1st Year
Total Frequency Tolerance (20 years)
Supply Voltage (Vcc)
3.3V LVCMOS
5.0V HCMOS / Sinewave
Supply Power (0 to 70°C)
Supply Power (-40 to 85°C)
Phase Jitter (BW = 10KHz to Fo/2)
Period Jitter
Allan Variance (1 second)
SSB Phase Noise at 10Hz offset
SSB Phase Noise at 100Hz offset
SSB Phase Noise at 1kHz offset
SSB Phase Noise at 10kHz offset
Start-Up Time Oscillator
Warm-Up Time
Minimum
Nominal
Maximum
Units
ppm
ppb
ppb
ppb
ppm
ppm
Vdc
Vdc
Watts
Watts
ps RMS
ps RMS
dbc/Hz
dbc/Hz
dbc/Hz
dbc/Hz
ms
Minutes
Notes
1, 4, 9,
2
3
4
5, 10
-0.1
-
0.1
*
05: ±5; 10: ±10; 20: ±20; 50: ±50
-10
-
10
-5
-
5
-0.3
-
0.3
-1.5
-
1.5
3.13
4.75
-
-
-
-
-
-
-
-
-
-
-
3.3
5.0
-
-
-
-
5.0E-11
-100
-120
-140
-150
-
-
3.47
5.25
1.4
2.2
1
1
-
-
-
-
-
35
3
6
6
6
6
7
OCVCXO Characteristics
Parameter
Control Voltage Range:(Vc)
3.3V LVCMOS
5.0V HCMOS / Sinewave
Frequency
3.3V LVCMOS at Vc=0.3 Vdc
3.3V LVCMOS at Vc=3.0 Vdc
5.0V HCMOS /Sinewave at Vc=0.5Vdc
5.0V HCMOS /Sinewave at Vc=4.5Vdc
Slope of Frequency Adjust
3.3V LVCMOS
5.0V HCMOS /Sinewave
Imput Impedance
Minimum
0.30
0.50
-
5
-
5
3.7
2.5
100K
Nominal
1.65
2.50
-7
7
-7
7
-
-
-
Maximum
3.0
4.50
-5
-
-5
-
-
-
-
Units
Vdc
Vdc
ppm
ppm
ppm
ppm
ppm/V
ppm/V
Ohms
Notes
8
8
8
8
1. Initial calibration @ 25C. OCVCXO model Vc = Nominal.
2. Frequency stability vs. Change in temperature, referenced to 25C.
3. Frequency stability per 5% change in supply voltage.
4. At the time of shipment after 48 hours of operation.
5. Inclusive of calibration, operating temperature range, supply voltage change, shock and vibration 20 years aging, OCVCXO models Vc = Nominal.
6. Typical phase noise, results will vary depending on center frequency. The phase noise shown are typical for 20 MHz.
7. Measured @ 25C, within 3 minutes, the unit will be within +/-0.1ppm of its reference frequency, measured after 30 minutes of continuous
operation at a stable 25C.
8. OCVCXO models pullability referenced to Fo @ 25°C, Positive Transfer Characteristics
9. Initial calibration @ 25C. OCVCXO model Vc = Nominal.
1
0. Inclusive of calibration, operating temperature range, supply voltage change, shock and vibration 20 years aging, OCVCXO models Vc = Nominal.
Specifications subject to change without notification. See Connor-Winfield's website for latest revision. All dimensions in inches.
© Copyright 2015 The Connor-Winfield Corporation Not intended for life support applications.
Bulletin
Page
Revision
Date
Cx272
2 of 4
00
13 Nov 2015
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
LVCMOS Output Characteristics
Parameter
Load
Voltage: 3.3V LVCMOS
High (Voh)
Low (Vol)
Voltage: 5.0V HCMOS
High (Voh)
Low (Vol)
Current
High (loh)
Low (lol)
Duty Cycle at 50% of Vcc
Rise / Fall Time: 10% to 90%
Minimum
-
2.60
-
Vcc-0.5
-
-4
-
45
-
Nominal
15
-
-
-
-
-
-
50
-
Maximum
-
-
0.40
-
0.40
-
4
55
6.5
Units
pF
Vdc
Vdc
Vdc
Vdc
mA
mA
%
ns
Notes
Sinewave Output Characteristics
Parameter
Load
Output Power
(Vcc=3.3V)
(Vcc=5.0V)
Harmonics
Spurious
Minimum
-
3
6
-
-
Nominal
50
-
-
-
-
Maximum
-
-
-
-30
-80
Units
Ohms
dBm
dBm
dBc
dBc
Notes
Package Characteristics
OHSM4-Series
Hermetically sealed welded package on FR4 substrate
Environmental Characteristics
Shock
Sinusoidal Vibration
Random Vibration
Altitude
Moisture
Marking Permanency
Attachment Method PCB
Resistance to Solder Heat
Solder Process
100 G's 3ms, Half sine, 3 shocks per direction, per
MIL-STD 202F, Method 213B Test Condition D.
0.06” D.A. or 10G’s Peak, 10 to 500 Hz, per MIL-STD 202F,
Method 204D, Test Condition A.
5.35 G’s rms. 20 to 2000 Hz per MIL-STD-202F, Method
214,Test Condition 1A, 15 minutes each axis.
70,000 ft max
10 cycles, 95% RH, Per MIL-STD-202F, Method 112.
Per MIL-STD-202F, Method 215J.
Through Hole Mounted
Per MIL-STD-202F, Method 210, Condition E.
RoHS compliant, lead free. See solder profile.
260°C
220°C
180°C
150°C
120°C
Solder Profile
Temperature
260°C
0
10 s
Up to 120 s
60 to 90 s
Typical
Typical
Meets IPC/JEDEC J-STD-020C
Test Circuit
CMOS Output Waveform
90%
14
1
8
7
50%
*
10%
OCXO = N/C
OCVCXO = VC
*
Bulletin
15 pF for CMOS Load
50 Ohms for Sinewave Load
Page
Revision
Date
Cx272
3 of 4
00
13 Nov 2015
Specifications subject to change without notification. See Connor-Winfield's website for latest revision. All dimensions in inches.
© Copyright 2015 The Connor-Winfield Corporation Not intended for life support applications.
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
OHSM4610LF-020.0M MTIE per Stratum 3E (OCXO is covered)
Loop Bandwidth = 0.0016 Hz
OHSM4610LF-020.0M TDEV per Stratum 3E (OCXO is covered)
Loop Bandwidth = 0.0016 Hz
Bulletin
Page
Revision
Date
Specifications subject to change without notification. See Connor-Winfield's website for latest revision. All dimensions in inches.
© Copyright 2015 The Connor-Winfield Corporation Not intended for life support applications.
Cx272
4 of 4
00
13 Nov 2015
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